LibWeb: Implement the [[CrossOriginPropertyDescriptorMap]] internal slot

3 files changed, 59 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/Bindings/CrossOriginAbstractOperations.h b/Userland/Libraries/LibWeb/Bindings/CrossOriginAbstractOperations.h
new file mode 100644
index 0000000000..945296ae9b
--- /dev/null
+++ b/Userland/Libraries/LibWeb/Bindings/CrossOriginAbstractOperations.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Forward.h>
+#include <AK/Traits.h>
+#include <LibJS/Forward.h>
+
+namespace Web::Bindings {
+
+struct CrossOriginKey {
+    FlatPtr current_settings_object;
+    FlatPtr relevant_settings_object;
+    JS::PropertyKey property_key;
+};
+
+using CrossOriginPropertyDescriptorMap = HashMap<CrossOriginKey, JS::PropertyDescriptor>;
+
+}
+
+namespace AK {
+
+template<>
+struct Traits<Web::Bindings::CrossOriginKey> : public GenericTraits<Web::Bindings::CrossOriginKey> {
+    static unsigned hash(Web::Bindings::CrossOriginKey const& key)
+    {
+        return pair_int_hash(
+            Traits<JS::PropertyKey>::hash(key.property_key),
+            pair_int_hash(ptr_hash(key.current_settings_object), ptr_hash(key.relevant_settings_object)));
+    }
+
+    static bool equals(Web::Bindings::CrossOriginKey const& a, Web::Bindings::CrossOriginKey const& b)
+    {
+        return a.current_settings_object == b.current_settings_object
+            && a.relevant_settings_object == b.relevant_settings_object
+            && Traits<JS::PropertyKey>::equals(a.property_key, b.property_key);
+    }
+};
+
+}
diff --git a/Userland/Libraries/LibWeb/Bindings/LocationObject.h b/Userland/Libraries/LibWeb/Bindings/LocationObject.h
index 18a16e1a8d..6a03eada20 100644
--- a/Userland/Libraries/LibWeb/Bindings/LocationObject.h
+++ b/Userland/Libraries/LibWeb/Bindings/LocationObject.h
@@ -10,6 +10,7 @@
 #include <AK/URL.h>
 #include <LibJS/Runtime/Completion.h>
 #include <LibJS/Runtime/Object.h>
+#include <LibWeb/Bindings/CrossOriginAbstractOperations.h>
 #include <LibWeb/Forward.h>
 
 namespace Web {
@@ -30,6 +31,9 @@ public:
     // FIXME: There should also be a custom [[GetPrototypeOf]], [[GetOwnProperty]], [[DefineOwnProperty]], [[Get]], [[Set]], [[Delete]] and [[OwnPropertyKeys]],
     //        but we don't have the infrastructure in place to implement them yet.
 
+    CrossOriginPropertyDescriptorMap const& cross_origin_property_descriptor_map() const { return m_cross_origin_property_descriptor_map; }
+    CrossOriginPropertyDescriptorMap& cross_origin_property_descriptor_map() { return m_cross_origin_property_descriptor_map; }
+
 private:
     DOM::Document const* relevant_document() const;
     AK::URL url() const;
@@ -47,6 +51,9 @@ private:
     JS_DECLARE_NATIVE_FUNCTION(search_getter);
     JS_DECLARE_NATIVE_FUNCTION(protocol_getter);
     JS_DECLARE_NATIVE_FUNCTION(port_getter);
+
+    // [[CrossOriginPropertyDescriptorMap]], https://html.spec.whatwg.org/multipage/browsers.html#crossoriginpropertydescriptormap
+    CrossOriginPropertyDescriptorMap m_cross_origin_property_descriptor_map;
 };
 
 }
diff --git a/Userland/Libraries/LibWeb/Bindings/WindowObject.h b/Userland/Libraries/LibWeb/Bindings/WindowObject.h
index 3488803e04..8efc18177e 100644
--- a/Userland/Libraries/LibWeb/Bindings/WindowObject.h
+++ b/Userland/Libraries/LibWeb/Bindings/WindowObject.h
@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
  * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
+ * Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -13,6 +14,7 @@
 #include <LibJS/Runtime/Completion.h>
 #include <LibJS/Runtime/GlobalObject.h>
 #include <LibWeb/Bindings/CallbackType.h>
+#include <LibWeb/Bindings/CrossOriginAbstractOperations.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/GlobalEventHandlers.h>
 
@@ -68,6 +70,9 @@ public:
 
     virtual JS::ThrowCompletionOr<bool> internal_set_prototype_of(JS::Object* prototype) override;
 
+    CrossOriginPropertyDescriptorMap const& cross_origin_property_descriptor_map() const { return m_cross_origin_property_descriptor_map; }
+    CrossOriginPropertyDescriptorMap& cross_origin_property_descriptor_map() { return m_cross_origin_property_descriptor_map; }
+
 private:
     virtual void visit_edges(Visitor&) override;
 
@@ -136,6 +141,9 @@ private:
 
     HashMap<String, JS::Object*> m_prototypes;
     HashMap<String, JS::NativeFunction*> m_constructors;
+
+    // [[CrossOriginPropertyDescriptorMap]], https://html.spec.whatwg.org/multipage/browsers.html#crossoriginpropertydescriptormap
+    CrossOriginPropertyDescriptorMap m_cross_origin_property_descriptor_map;
 };
 
 }